{"id":36691,"date":"2026-07-06T18:00:21","date_gmt":"2026-07-06T16:00:21","guid":{"rendered":"https:\/\/www.chinasmartbuy.com\/blog\/chatgpt-falla-file-caricati-prompt-injection-openai-fix\/"},"modified":"2026-07-06T18:00:23","modified_gmt":"2026-07-06T16:00:23","slug":"chatgpt-falla-file-caricati-prompt-injection-openai-fix","status":"publish","type":"post","link":"https:\/\/www.chinasmartbuy.com\/blog\/chatgpt-falla-file-caricati-prompt-injection-openai-fix\/","title":{"rendered":"ChatGPT, scoperta una falla nei file caricati: OpenAI ha gi\u00e0 corretto il bug"},"content":{"rendered":"\n\n<style>\n  :root {\n    --red: #CC1B1B;\n    --red-light: rgba(204,27,27,0.08);\n    --red-mid: #e84040;\n    --accent-soft-bg: rgba(204,27,27,0.07);\n    --accent-soft-border: rgba(204,27,27,0.18);\n    --text: #1a1a1a;\n    --text-muted: #666;\n    --card: #ffffff;\n    --border: #ebebeb;\n    --page-bg: #ffffff;\n    --surface-soft: #fafafa;\n    --surface-contrast: #f0f0f0;\n    --line-soft: #f5f5f5;\n    --soft-label: #bbb;\n    --muted-label: #999;\n    --copy: #333;\n    --font-head: 'Bebas Neue', sans-serif;\n    --font-body: 'DM Sans', sans-serif;\n    --heading-spacing: 0.04em;\n    --heading-weight: 400;\n    --spec-header-spacing: 0.08em;\n    --quickfacts-shadow: 0 10px 24px rgba(15,23,42,0.06);\n  }\n  .fbp5-wrap,.fbp5-wrap * { box-sizing:border-box; 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gap:40px; }\n    .fbp5-section h2 { font-size:32px; }\n    .fbp5-scheda-row { flex-direction:column; }\n    .fbp5-scheda-key { width:100%; }\n    .rh-phonebox-header { padding:18px 16px; flex-direction:column; align-items:center; }\n    .rh-phonebox-hero { width:150px; height:200px; }\n    .rh-phonebox-highlights { grid-template-columns:repeat(2,minmax(0,1fr)); }\n    .rh-phonebox-colors { padding:16px; }\n    .rh-phonebox-section { grid-template-columns:1fr; }\n    .rh-phonebox-section-label { padding:14px 20px; border-right:none; border-bottom:1px solid var(--border); }\n    .rh-phonebox-section-values { padding:14px 20px; }\n    .rh-affbox-grid { grid-template-columns:1fr; }\n    .rh-affbox-col:not(:last-child) { border-right:none; border-bottom:1px solid var(--line-soft); }\n    .rh-affbox-cta { width:100%; }\n    .rh-downloadjump { align-items:flex-start; flex-direction:column; margin:-22px 0 0; }\n    .rh-downloadjump a { width:100%; }\n    .rh-downloadbox-head { flex-direction:column; }\n    .rh-downloadbox-link { width:100%; }\n    .rh-offerbox-head { flex-direction:column; }\n    .rh-offerbox-links { grid-template-columns:1fr; }\n    .rh-offer-inline-wrap { flex-direction:column; align-items:flex-start; }\n    .rh-offer-inline-cta { width:100%; }\n  }\n\n  \/* RH_FBP5_CARDS_CSS_V1 *\/\n  .fbp5-related-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }\n  .fbp5-telegram-grid { grid-template-columns:repeat(2,1fr); }\n  .fbp5-related-card { display:block; overflow:hidden; border:1px solid var(--border,#ebebeb); border-radius:8px; background:var(--card,#fff); color:inherit !important; text-decoration:none !important; transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease; }\n  .fbp5-related-card:hover { transform:translateY(-2px); border-color:rgba(204,27,27,.35); box-shadow:0 16px 36px rgba(18,18,18,.10); }\n  .fbp5-related-card img { display:block; width:100%; aspect-ratio:16\/9; object-fit:cover; background:var(--surface-soft,#fafafa); }\n  .fbp5-related-thumb-placeholder { width:100%; aspect-ratio:16\/9; display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg,rgba(204,27,27,.10),rgba(204,27,27,.03)); color:var(--red,#CC1B1B); font-family:var(--font-head,'Bebas Neue',sans-serif); font-size:28px; letter-spacing:.04em; }\n  .fbp5-related-body { padding:12px; }\n  .fbp5-related-body span { display:block; margin:0 0 6px; color:var(--red,#CC1B1B); font-size:11px; font-weight:900; letter-spacing:.08em; text-transform:uppercase; }\n  .fbp5-related-body strong { display:block; font-size:15px; line-height:1.25; color:var(--text,#1a1a1a); }\n  .fbp5-related-body small { display:block; margin:7px 0 0; color:var(--text-muted,#666); font-size:13px; line-height:1.35; }\n  @media(max-width:720px) {\n    .fbp5-telegram-grid { grid-template-columns:1fr; }\n    .fbp5-related-grid:not(.fbp5-telegram-grid) { grid-template-columns:1fr; }\n    .fbp5-related-grid:not(.fbp5-telegram-grid) .fbp5-related-card { display:grid; grid-template-columns:112px minmax(0,1fr); align-items:stretch; }\n    .fbp5-related-grid:not(.fbp5-telegram-grid) .fbp5-related-card img,\n    .fbp5-related-grid:not(.fbp5-telegram-grid) .fbp5-related-thumb-placeholder { height:100%; min-height:92px; aspect-ratio:auto; }\n  }\n<\/style>\n<div class=\"fbp5-wrap rh-json-article\" id=\"rh-article-mr9eotfh-7m6s5\" data-rh-article-type=\"news\" data-rh-site-profile=\"china-smart-buy\">\n  <div class=\"fbp5-intro\">\n    \n    <p>Un ricercatore di sicurezza ha individuato una falla in ChatGPT che permetteva di aggirare parte delle restrizioni sull\u2019accesso ai file caricati, combinando tecniche di <strong>prompt injection<\/strong> e <strong>path traversal<\/strong>. Il problema \u00e8 stato segnalato a OpenAI ed \u00e8 gi\u00e0 stato corretto.<\/p><p>La vulnerabilit\u00e0 non apriva direttamente l\u2019accesso a dati altamente sensibili, anche per via dei limiti imposti dal sandbox del servizio, per\u00f2 poteva diventare un tassello utile in una catena di attacco pi\u00f9 ampia. Il punto pi\u00f9 delicato era l\u2019esposizione di un percorso interno usato per il recupero dei file.<\/p>\n  <\/div><div class=\"rh-inline-gallery rh-inline-gallery-cols-2\" style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0;position:relative;z-index:1\"><figure class=\"wp-block-image size-large\" style=\"margin:0;position:relative;z-index:1\"><a href=\"https:\/\/www.chinasmartbuy.com\/blog\/wp-content\/uploads\/2026\/07\/chatgpt-scoperta-una-falla-nei-file-caricati-14d0d54e-b990-48f6-a3e6-66b9-c7ebo91o9i.webp\" target=\"_blank\" rel=\"noopener\" style=\"display:block;width:100%;height:100%;position:relative;z-index:2;pointer-events:auto;cursor:zoom-in\"><img decoding=\"async\" src=\"https:\/\/www.chinasmartbuy.com\/blog\/wp-content\/uploads\/2026\/07\/chatgpt-scoperta-una-falla-nei-file-caricati-14d0d54e-b990-48f6-a3e6-66b9-c7ebo91o9i.webp\" alt=\"\u7814\u7a76\u5458\u53d1\u73b0 ChatGPT \u6697\u85cf\u6f0f\u6d1e\uff0c\u53ef\u901a\u8fc7\u63d0\u793a\u8bcd\u6ce8\u5165\u7ed5\u8fc7\u6587\u4ef6\u8bbf\u95ee\u9650\u5236\" loading=\"lazy\" style=\"display:block;width:100%;height:auto;pointer-events:auto\"><\/a><\/figure><figure class=\"wp-block-image size-large\" style=\"margin:0;position:relative;z-index:1\"><a href=\"https:\/\/www.chinasmartbuy.com\/blog\/wp-content\/uploads\/2026\/07\/chatgpt-scoperta-una-falla-nei-file-caricati-5cfad0f2-9603-4e2d-835e-f72b-mhuje9e2bn.webp\" target=\"_blank\" rel=\"noopener\" style=\"display:block;width:100%;height:100%;position:relative;z-index:2;pointer-events:auto;cursor:zoom-in\"><img decoding=\"async\" src=\"https:\/\/www.chinasmartbuy.com\/blog\/wp-content\/uploads\/2026\/07\/chatgpt-scoperta-una-falla-nei-file-caricati-5cfad0f2-9603-4e2d-835e-f72b-mhuje9e2bn.webp\" alt=\"\u7814\u7a76\u5458\u53d1\u73b0 ChatGPT \u6697\u85cf\u6f0f\u6d1e\uff0c\u53ef\u901a\u8fc7\u63d0\u793a\u8bcd\u6ce8\u5165\u7ed5\u8fc7\u6587\u4ef6\u8bbf\u95ee\u9650\u5236\" loading=\"lazy\" style=\"display:block;width:100%;height:auto;pointer-events:auto\"><\/a><\/figure><\/div>\n  \n\n      <section class=\"fbp5-section\">\n        <div class=\"fbp5-section-label\">Sicurezza<\/div>\n        <h2>La falla sfruttava modifica del file e richiesta del <span>link di download<\/span><\/h2>\n        <p>Nei test condotti dal ricercatore zer0dac, il meccanismo partiva da un normale file caricato su ChatGPT. In condizioni standard, il sistema non fornisce all\u2019utente un link diretto per riscaricare il file originale e, se richiesto, tende a indicare che il contenuto temporaneo non \u00e8 pi\u00f9 disponibile.<\/p><p>L\u2019anomalia emergeva chiedendo prima a ChatGPT di modificare il file caricato e poi dichiarando che il file era stato eliminato per errore, con successiva richiesta di un nuovo collegamento per il download. In questo scenario il sistema poteva restituire un <strong>URL valido<\/strong>, esponendo cos\u00ec il percorso interno usato per recuperare il file.<\/p>\n        <ul class=\"fbp5-bullet-list\"><li>Il flusso dell\u2019attacco partiva da un file caricato manualmente dall\u2019utente.<\/li><li>La richiesta di modifica del file era il passaggio utile a innescare il comportamento anomalo.<\/li><li>La successiva richiesta del link di recupero poteva far comparire un indirizzo interno effettivamente utilizzabile.<\/li><li>Il problema era legato alla gestione dei link di download generati dal sistema.<\/li><\/ul>\n        <div class=\"rh-quickfacts-grid\">\n      <div class=\"rh-quickfacts-card\">\n        <div class=\"rh-quickfacts-label\">Ricercatore<\/div>\n        <div class=\"rh-quickfacts-value\">zer0dac<\/div>\n      <\/div>\n    \n      <div class=\"rh-quickfacts-card\">\n        <div class=\"rh-quickfacts-label\">Tecniche coinvolte<\/div>\n        <div class=\"rh-quickfacts-value\">Prompt injection e path traversal<\/div>\n      <\/div>\n    \n      <div class=\"rh-quickfacts-card\">\n        <div class=\"rh-quickfacts-label\">Stato<\/div>\n        <div class=\"rh-quickfacts-value\">Corretto da OpenAI<\/div>\n      <\/div>\n    <\/div>\n        <div class=\"fbp5-highlight\">Il dato pi\u00f9 importante \u00e8 che il bug poteva far emergere un link interno reale, utile come base per tentativi successivi di accesso non previsto.<\/div>\n        <div class=\"fbp5-info\">La vulnerabilit\u00e0 riguardava il modo in cui il sistema generava e restituiva i collegamenti per il download dopo l\u2019elaborazione del file.<\/div>\n        \n      <div class=\"fbp5-scheda\">\n        <div class=\"fbp5-scheda-header\">Dettagli chiave della vulnerabilit\u00e0<\/div>\n        \n          <div class=\"fbp5-scheda-row\">\n            <div class=\"fbp5-scheda-key\">Servizio coinvolto<\/div>\n            <div class=\"fbp5-scheda-val\">ChatGPT<\/div>\n          <\/div>\n        \n          <div class=\"fbp5-scheda-row\">\n            <div class=\"fbp5-scheda-key\">Punto d\u2019ingresso<\/div>\n            <div class=\"fbp5-scheda-val\">Gestione dei file caricati<\/div>\n          <\/div>\n        \n          <div class=\"fbp5-scheda-row\">\n            <div class=\"fbp5-scheda-key\">Elemento esposto<\/div>\n            <div class=\"fbp5-scheda-val\">Percorso interno del download del file<\/div>\n          <\/div>\n        \n          <div class=\"fbp5-scheda-row\">\n            <div class=\"fbp5-scheda-key\">Impatto immediato<\/div>\n            <div class=\"fbp5-scheda-val\">Bypass parziale delle restrizioni di accesso ai file<\/div>\n          <\/div>\n        \n      <\/div>\n    \n      <\/section>\n    \n\n      <section class=\"fbp5-section\">\n        <div class=\"fbp5-section-label\">Impatto<\/div>\n        <h2>Il rischio principale era l\u2019uso del bug come parte di <span>attacchi pi\u00f9 complessi<\/span><\/h2>\n        <p>Una volta ottenuto il percorso interno, un attaccante poteva tentare di combinarlo con tecniche di <strong>path traversal<\/strong> per cercare di uscire dai limiti previsti e leggere contenuti diversi da quelli inizialmente concessi. Non si trattava quindi solo di un problema di link esposto, ma di un possibile punto di appoggio per fasi successive.<\/p><p>Lo stesso ricercatore ha chiarito che il sandbox di ChatGPT limitava l\u2019accesso diretto a dati molto sensibili. Proprio per questo il bug va letto soprattutto come un vettore intermedio: da solo non bastava a compromettere tutto, per\u00f2 poteva aumentare la superficie d\u2019attacco in scenari pi\u00f9 articolati.<\/p>\n        <ul class=\"fbp5-bullet-list\"><li>L\u2019exploit non garantiva da solo accesso pieno a dati critici.<\/li><li>Il sandbox riduceva l\u2019impatto immediato della falla.<\/li><li>Il valore del bug stava nella possibilit\u00e0 di usarlo dentro una catena di attacco pi\u00f9 ampia.<\/li><li>OpenAI ha modificato il processo di generazione degli URL di download per chiudere il problema.<\/li><\/ul>\n        <div class=\"rh-quickfacts-grid\">\n      <div class=\"rh-quickfacts-card\">\n        <div class=\"rh-quickfacts-label\">Mitigazione esistente<\/div>\n        <div class=\"rh-quickfacts-value\">Sandbox del servizio<\/div>\n      <\/div>\n    \n      <div class=\"rh-quickfacts-card\">\n        <div class=\"rh-quickfacts-label\">Intervento correttivo<\/div>\n        <div class=\"rh-quickfacts-value\">Revisione della generazione degli URL<\/div>\n      <\/div>\n    <\/div>\n        <div class=\"fbp5-highlight\">Anche senza accesso diretto a informazioni critiche, una falla di questo tipo \u00e8 importante perch\u00e9 rivela come i sistemi AI che gestiscono file possano esporre interfacce interne in modo inatteso.<\/div>\n        <div class=\"fbp5-info\">Per chi usa strumenti AI con upload di documenti, il caso conferma quanto siano centrali i controlli su link temporanei, percorsi interni e isolamento dell\u2019ambiente di esecuzione.<\/div>\n        \n      <div class=\"fbp5-scheda\">\n        <div class=\"fbp5-scheda-header\">Valutazione pratica del rischio<\/div>\n        \n          <div class=\"fbp5-scheda-row\">\n            <div class=\"fbp5-scheda-key\">Tipo di rischio<\/div>\n            <div class=\"fbp5-scheda-val\">Escalation tramite combinazione di pi\u00f9 tecniche<\/div>\n          <\/div>\n        \n          <div class=\"fbp5-scheda-row\">\n            <div class=\"fbp5-scheda-key\">Limite principale<\/div>\n            <div class=\"fbp5-scheda-val\">Restrizioni del sandbox<\/div>\n          <\/div>\n        \n          <div class=\"fbp5-scheda-row\">\n            <div class=\"fbp5-scheda-key\">Possibile uso offensivo<\/div>\n            <div class=\"fbp5-scheda-val\">Esplorazione di percorsi oltre quelli consentiti<\/div>\n          <\/div>\n        \n          <div class=\"fbp5-scheda-row\">\n            <div class=\"fbp5-scheda-key\">Situazione attuale<\/div>\n            <div class=\"fbp5-scheda-val\">Vulnerabilit\u00e0 risolta<\/div>\n          <\/div>\n        \n      <\/div>\n    \n      <\/section>\n    \n<section class=\"fbp5-section\" data-rh-related-section=\"1\">\n      <div class=\"fbp5-section-label\">Articoli correlati<\/div>\n      <h2>Altre notizie <span>da leggere<\/span><\/h2>\n      <div class=\"fbp5-related-grid\"><a class=\"fbp5-related-card\" 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22px rgba(249,115,22,.08)\">Via<\/a><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Scoperta una vulnerabilit\u00e0 in ChatGPT che poteva esporre link interni dei file caricati. OpenAI ha gi\u00e0 distribuito la correzione.<\/p>\n","protected":false},"author":5,"featured_media":36690,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_yoast_wpseo_focuskw_text_input":"falla ChatGPT file caricati","footnotes":""},"categories":[480],"tags":[1143],"class_list":["post-36691","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-openai"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ChatGPT, scoperta una falla nei file caricati: OpenAI ha gi\u00e0 corretto il bug<\/title>\n<meta name=\"description\" content=\"Un ricercatore ha scoperto una falla in ChatGPT che combinava prompt injection e path traversal per aggirare parte 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